Four centuries ago, Johannes Kepler established three laws of planetary motion that accurately describe how planets in the ...

NASA’s Solar System Exploration website notes these names, rooted in Latin, persisted due to historical inertia despite varied ancient names.

With an atmosphere, by mass, of primarily hydrogen (76 per cent) and helium (24 per cent), and by volume of 89 per cent ...

Stunning new Jupiter photos from NASA’s Juno spacecraft reveal storms, cloud bands, and its volcanic moon Io as the mission ...

Proclus’s visionary insights into planetary satellites reveal a divine cosmic order that foreshadowed modern astronomical ...

Often overshadowed by Europa and Ganymede, Callisto is actually one of the largest moons in our solar system. In this video, we explore the high-resolution images and surprising data that have brought ...

Modest binoculars or a small telescope are all you need to see the Beehive Star Cluster. Appearing as a circular patch of light to the eye, a small scope resolves the Beehive into dozens of stars.

“I could touch the real pages,” said De Angelis, who is a professor at the University of Padua, where Galileo himself taught mathematics between 1601 and 1610. “This was an incredible ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...

On July 30, 1610, the famous astronomer Galileo Galilei became the first to observe rings around the planet Saturn. Shortly after the telescope was invented in 1608, Galileo peered out into the ...